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Park			Taxon Code
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National Park Service
U.S. Department of the Interior

NPSpecies - Park Species Profile


Lemna minor
common duckweed
Upper Delaware Scenic and Recreational River
			Record Status: Approved
Occurrence:	Present
Nativeness:	Native
Abundance:	Unknown

Scientific Name with Authority:		Lemna minor L.
Park Preferred Common Name(s):		common duckweed
Park Synonyms:

Taxonomic Hierarchy:		Kingdom Plantae, Phylum Tracheophyta, Subphylum Spermatophytina, Order Alismatales, Family Araceae, Genus Lemna, Species Lemna minor


Park Tags:
ParkTag -


Threatened/Endangered Status:
State Species of Concern Status:
Ozone-sensitive Status:
NatureServe Global Rank:		G5
NatureServe State Rank:		NY: S5; PA: S5
Evidence:		1 Observations, 0 Vouchers, 3 Data Store References, 0 External Links


Other Parks Where Species is Listed:
Antietam National Battlefield	Apostle Islands National Lakeshore
Assateague Island National Seashore	Badlands National Park
Bering Land Bridge National Preserve	Buffalo National River
Canyon De Chelly National Monument	Cape Cod National Seashore
Cape Hatteras National Seashore	Channel Islands National Park
Chickasaw National Recreation Area	City Of Rocks National Reserve
Colonial National Historical Park	Crater Lake National Park
Craters of the Moon National Monument and Preserve	Cumberland Gap National Historical Park
Cumberland Island National Seashore	Curecanti National Recreation Area
Cuyahoga Valley National Park	Delaware Water Gap National Recreation Area
Denali National Park and Preserve	Effigy Mounds National Monument
Eleanor Roosevelt National Historic Site	First State National Historical Park
Florissant Fossil Beds National Monument	Fort Matanzas National Monument
Gateway National Recreation Area	George Washington Carver National Monument
George Washington Memorial Parkway	Gettysburg National Military Park
Glacier National Park	Golden Gate National Recreation Area
Grand Portage National Monument	Grand Teton National Park
Grant-Kohrs Ranch National Historic Site	Great Sand Dunes National Park and Preserve
Hagerman Fossil Beds National Monument	Harpers Ferry National Historical Park
Hopewell Furnace National Historic Site	Indiana Dunes National Park
Isle Royale National Park	Johnstown Flood National Memorial
Lake Clark National Park and Preserve	Lake Roosevelt National Recreation Area
Lewis and Clark National Historical Park	Mammoth Cave National Park
Manassas National Battlefield Park	Marsh-Billings-Rockefeller National Historical Park
Martin Van Buren National Historic Site	Minute Man National Historical Park
Mississippi National River and Recreation Areas	Montezuma Castle National Monument
Mount Rainier National Park	Natchez Trace Parkway
New River Gorge National Park and Preserve	Ninety Six National Historic Site
North Cascades National Park	Olympic National Park
Petersburg National Battlefield	Pictured Rocks National Lakeshore
Pinnacles National Park	Pipe Spring National Monument
Pipestone National Monument	Point Reyes National Seashore
Prince William Forest Park	Rocky Mountain National Park
Sagamore Hill National Historic Site	Saint Croix National Scenic Riverway
San Juan Island National Historical Park	Santa Monica Mountains National Recreation Area
Saratoga National Historical Park	Sequoia and Kings Canyon National Parks
Sleeping Bear Dunes National Lakeshore	Tallgrass Prairie National Preserve
Valles Caldera National Preserve	Valley Forge National Historical Park
Voyageurs National Park	Weir Farm National Historical Park
Wind Cave National Park	Wrangell - St Elias National Park and Preserve
Yukon-Charley Rivers National Preserve


Last Modified Date:	9/12/2013

NPSpecies - The National Park Service biodiversity database. IRMA Portal version.https://irma.nps.gov/npspecies. Accessed 10/11/2025 10:18:52 AM

NatureServe Global Rank and State Rank

NatureServe. 2017. NatureServe Web Service. Arlington, VA. U.S.A. Available http://services.natureserve.org. Accessed: 12/4/2017. Updated quarterly.

This information is provided by NatureServe (www.natureserve.org) and its network of natural heritage member programs, a leading source of information about rare and endangered species, and threatened ecosystems.


Species Profile	Page 1 of 1	10/11/2025 10:18:52 AM

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